Optical 3-D shape and deformation measurement of rotating blades using stroboscopic structured illumination

Qican Zhang; Xianyu Su; Yiping Cao; Yong Li; Liqun Xiang; Wenjing Chen

doi:10.1117/1.2127927

1 November 2005 Optical 3-D shape and deformation measurement of rotating blades using stroboscopic structured illumination

Qican Zhang, Xianyu Su, Yiping Cao, Yong Li, Liqun Xiang, Wenjing Chen

Author Affiliations +

Optical Engineering, Vol. 44, Issue 11, 113601 (November 2005). https://doi.org/10.1117/1.2127927

Abstract

An optical method for shape and deformation measurement of a rotating blade, which is based on Fourier transform profilometry (FTP) and the stroboscopic effect, is proposed and has been verified by experiments. The integrated principles of the method, the process of 3-D phase unwrapping, and the detailed design of the synchronization control unit are discussed. Experimental results on a commercial electric fan prove that FTP can reconstruct the shape of a rotating blade efficiently and reveal its deformation different times clearly by using stroboscopic structured illumination. This method can be used for studying high-speed motion with rapid periodic signals.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Qican Zhang, Xianyu Su, Yiping Cao, Yong Li, Liqun Xiang, and Wenjing Chen "Optical 3-D shape and deformation measurement of rotating blades using stroboscopic structured illumination," Optical Engineering 44(11), 113601 (1 November 2005). https://doi.org/10.1117/1.2127927

Published: 1 November 2005

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